Diagnosis Procedure
- CHECK FUSIBLE LINK
- Turn the power supply mode of the electric motor switch to OFF.
- Check that the following fusible link is not blown (open).
Fusible link No. Current rating KK 30 A
Is the fusible link blown (open)?
YES: Repair the blown (open) fusible link after repairing the affected circuit if a fusible link blown (open).
NO: GO TO 2.
- CHECK REAR POWER WINDOW SWITCH POWER SUPPLY
- Disconnect rear power window switch connector.
- Turn the power supply mode of the electric motor switch to ON.
- Check voltage between rear power window switch harness connector and ground.
(+) (-) Voltage Rear power window switch Connector Terminal LH D204 6 Ground 9 - 16 V RH D304
Is the inspection result normal?
YES: GO TO 7.
NO: GO TO 3.
- CHECK POWER WINDOW RELAY POWER SUPPLY
- Turn the power supply mode of the electric motor switch to OFF.
- Remove power window relay.
- Check voltage between fuse block (J/B) and ground.
(+) (-) Voltage Fuse block (J/B) Terminal Power window relay Switch upstream side Ground 9 - 16 V Coil upstream side
Is the inspection result normal?
YES: GO TO 4.
NO: Repair or replace harness.
- CHECK REAR POWER WINDOW SWITCH POWER SUPPLY CIRCUIT
Check continuity between fuse block (J/B) and rear power window switch harness connector.
Fuse block (J/B) Rear power window switch Continuity Terminal Connector Terminal Power window relay Switch downstream side LH D204 6 Existed RH D304 Is the inspection result normal?
YES: GO TO 5.
NO: Repair or replace harness.
- CHECK POWER WINDOW RELAY CONTROL CIRCUIT
- Disconnect BCM connector.
- Check continuity between BCM harness connector and fuse block (J/B).
BCM Fuse block (J/B) Continuity Connector Terminal Terminal M18 32 Power window relay Coil downstream side Existed - Check continuity between BCM harness connector and ground.
BCM - Continuity Connector Terminal M18 32 Ground Not existed
Is the inspection result normal?
YES: GO TO 6.
NO: Repair or replace harness.
- CHECK POWER WINDOW RELAY
Check power window relay.
Refer to COMPONENT INSPECTION .
Is the inspection result normal?
YES: Replace BCM. Refer to REMOVAL AND INSTALLATION .
NO: Replace power window relay.
- CHECK REAR POWER WINDOW SWITCH GROUND CIRCUIT
- Turn the power supply mode of the electric motor switch to OFF.
- Check continuity between rear power window switch harness connector and ground.
Rear power window switch - Continuity Connector Terminal LH D204 7 Ground Existed RH D304
Repair or replace harness .
YES: INSPECTION END
NO: Repair or replace harness.